- All sections
- D - Textilespaper
- D01F - Chemical features in the manufacture of man-made filaments, threads, fibres, bristles or ribbonsapparatus specially adapted for the manufacture of carbon filaments
- D01F 6/90 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyamides
Patent holdings for IPC class D01F 6/90
Total number of patents in this class: 230
10-year publication summary
|
18
|
24
|
17
|
14
|
20
|
18
|
17
|
17
|
13
|
7
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Toray Industries, Inc. | 6918 |
12 |
| Denka Company Limited | 2545 |
11 |
| Polytex Sportbeläge Produktions-GmbH | 108 |
10 |
| Donaldson Company, Inc. | 1598 |
9 |
| The Procter & Gamble Company | 22043 |
6 |
| Shakespeare Company, LLC | 161 |
6 |
| Teijin Limited | 1239 |
6 |
| DuPont Safety & Construction, Inc. | 674 |
6 |
| DSM IP Assets B.V. | 5601 |
5 |
| Ascend Performance Materials Operations LLC | 271 |
5 |
| Teijin Aramid B.V. | 170 |
5 |
| BASF SE | 20874 |
4 |
| E. I. du Pont de Nemours and Company | 4107 |
4 |
| Brookwood Companies Incorporated | 45 |
4 |
| Kuraray Co., Ltd. | 3496 |
4 |
| KB Seiren, Ltd. | 98 |
3 |
| Cibt America Inc. | 99 |
3 |
| Cathay Biotech Inc. | 97 |
3 |
| Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation | 297 |
2 |
| China Petroleum & Chemical Corporation | 1881 |
2 |
| Other owners | 120 |